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3 November, 08:11

Find the 87th term of the arithmetic sequence - 19, - 13, - 7, ...

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  1. 3 November, 11:43
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    Answer: 497

    Step-by-step explanation:

    The formula for this sequence is (x+6), and since the first three terms are given, you only need to find the last 84 terms.

    Multiply 6 by 84

    6 * 84 = 504

    Now subtract 7 from 504 since - 7 is the third term.

    504 - 7 = 497
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